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Finding the Fourth Proportional to 78,016.44, 107,662.54 and 42,206.48

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Solution

The fourth proportional to 78,016.44, 107,662.54 and 42,206.48 is: 58,244.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,016.44 : 107,662.54 = 42,206.48 : x
  2. Step 2: Convert to fraction form
    78,016.44/107,662.54 = 42,206.48/x
  3. Step 3: Cross multiply
    78,016.44x = 107,662.54 × 42,206.48
  4. Step 4: Simplify right side
    78,016.44x = 4,544,056,841.26
  5. Step 5: Solve for x
    x = 4,544,056,841.26/78,016.44
  6. Step 6: Final answer
    x = 58,244.86

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